The greater the crane load, the smaller the safety factor. In order to prevent accidents, when the heavy load reaches 90% or more of the rated lifting capacity of the crane, first lift the load from the ground for 200-500mm, and then check the stability of the crane, the reliability of the brake, the stability of the load, and the firmness of the binding. After confirmation, continue lifting. The heavy objects that are easy to shake shall be tied with pulling ropes.
Huai'an Crane Rental Company introduce Overhead hoisting The steel wire rope used by the crane shall have the product technical performance and quality certificate issued by the steel wire rope manufacturer. When there is no certificate, it can only be used after passing the test.
When a heavy object falls, it will brake suddenly, and the impact load will damage the lifting mechanism. In serious cases, it will damage the stability of the crane and overturn. The lifting speed of heavy objects shall be stable and even, and sudden braking is strictly prohibited. If Equipment displacement When the rotation does not stop, the weight will swing greatly due to inertia, which will also cause the boom to twist or the crane to overturn. Therefore, the left and right rotation should be stable, and the reverse action should be taken when the rotation does not stop. The non gravity lowering crane shall not fall freely with the load.
The structure, specification and strength of wire rope for crane shall meet the requirements of Crane Operation Manual. The wire rope shall be firmly connected with the drum. When the wire rope is loosened, at least three turns shall be left on the drum. When the wire rope is loosened, the wire rope ring, kink, bending and disorder shall be prevented, and the twisted deformed wire rope shall not be used. The braided part of the braided wire rope shall not pass through the drum and pulley during operation.
If the heavy object is suspended in the air for a long time, if the operator is negligent or the brake fails, the heavy object will lose control and cause an accident. Therefore, Huai'an Crane Rental Remind that in case of sudden failure during operation, measures should be taken to lower the weight to a safe place, shut down the engine or cut off the power supply for inspection. In case of sudden power failure, all controllers shall be set to zero position immediately, disconnect the main power switch, and take measures to lower the weight to the ground.
